碩士 / 國立成功大學 / 資源工程學系碩博士班 / 97 / For effective management and sustainable use of hot spring resources, appropriate artificial recharge would be a feasibility project in hot spring areas. In this research, the hydro-geothermal model is established in order to proceed sensitivity analysis of five hydrogeology parameters including density of rock, porosity, permeability, wet heat conductivity and specific
heat. Then the TOUGH2 numerical model is applied to evaluate the effect of several schemes of artificial recharge wells on the increased hot spring exploitation in a field case of Jiao-Si hot spring area, Taiwan. Several
scenarios of cross and boundary types of artificial recharge wells were also established in numerical model.
The sensitivity results showed that permeability is the most significant parameter in the groundwater flow and geo-temperature changes. The variations caused by others are less significant in sensitivity analysis. Furthermore, the injection rate and the distance between injection well and production well are also important factors in the
sensitivity analysis. When the amount of water from injection wells increases, the exploitation amount from production wells increases and the influence area of temperature becomes more broad. As the shorter
distance between injection well and production well is given, the higher water level and the more water exploitation in production well are obtained
Meanwhile, due to lower temperature outside Jiao-Si hot spring area,the simulated results indicated that when the water amount is injected in the central area, the water amount from exploitation of cross-type well is more efficiency than that of boundary-type case. Besides, exploitation amount of production well for injection in shallow position is larger than that of injection in the deeper position. The decrement of temperature and
concentration of production well for injection in shallow position are lower than that for injection in the deeper position.
| Identifer | oai:union.ndltd.org:TW/097NCKU5397051 |
| Date | January 2009 |
| Creators | Chia-hui Chou, 周家慧 |
| Contributors | Cheng-Haw Lee, 李振誥 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 120 |
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